ip
ipku.in

IPv4 Subnet Calculator

Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.

$ ipcalc
private IP (RFC 1918)10.0.114.0/24
network10.0.114.0/24
broadcast10.0.114.255
first host10.0.114.1
last host10.0.114.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.0.114.0/24
address00001010.00000000.01110010.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.00000000.01110010.00000000
broadcast00001010.00000000.01110010.11111111
green = network part, grey = host part
hex0x0a007200
decimal167801344
reverse dns0.114.0.10.in-addr.arpa
ipv4-mapped::ffff:a00:7200

/24 split into /32 · 256 subnets

close ×
#networkhost rangebroadcast
110.0.114.0/3210.0.114.0 – 10.0.114.010.0.114.0
210.0.114.1/3210.0.114.1 – 10.0.114.110.0.114.1
310.0.114.2/3210.0.114.2 – 10.0.114.210.0.114.2
410.0.114.3/3210.0.114.3 – 10.0.114.310.0.114.3
510.0.114.4/3210.0.114.4 – 10.0.114.410.0.114.4
610.0.114.5/3210.0.114.5 – 10.0.114.510.0.114.5
710.0.114.6/3210.0.114.6 – 10.0.114.610.0.114.6
810.0.114.7/3210.0.114.7 – 10.0.114.710.0.114.7
910.0.114.8/3210.0.114.8 – 10.0.114.810.0.114.8
1010.0.114.9/3210.0.114.9 – 10.0.114.910.0.114.9
1110.0.114.10/3210.0.114.10 – 10.0.114.1010.0.114.10
1210.0.114.11/3210.0.114.11 – 10.0.114.1110.0.114.11
1310.0.114.12/3210.0.114.12 – 10.0.114.1210.0.114.12
1410.0.114.13/3210.0.114.13 – 10.0.114.1310.0.114.13
1510.0.114.14/3210.0.114.14 – 10.0.114.1410.0.114.14
1610.0.114.15/3210.0.114.15 – 10.0.114.1510.0.114.15
1710.0.114.16/3210.0.114.16 – 10.0.114.1610.0.114.16
1810.0.114.17/3210.0.114.17 – 10.0.114.1710.0.114.17
1910.0.114.18/3210.0.114.18 – 10.0.114.1810.0.114.18
2010.0.114.19/3210.0.114.19 – 10.0.114.1910.0.114.19
2110.0.114.20/3210.0.114.20 – 10.0.114.2010.0.114.20
2210.0.114.21/3210.0.114.21 – 10.0.114.2110.0.114.21
2310.0.114.22/3210.0.114.22 – 10.0.114.2210.0.114.22
2410.0.114.23/3210.0.114.23 – 10.0.114.2310.0.114.23
2510.0.114.24/3210.0.114.24 – 10.0.114.2410.0.114.24
2610.0.114.25/3210.0.114.25 – 10.0.114.2510.0.114.25
2710.0.114.26/3210.0.114.26 – 10.0.114.2610.0.114.26
2810.0.114.27/3210.0.114.27 – 10.0.114.2710.0.114.27
2910.0.114.28/3210.0.114.28 – 10.0.114.2810.0.114.28
3010.0.114.29/3210.0.114.29 – 10.0.114.2910.0.114.29
3110.0.114.30/3210.0.114.30 – 10.0.114.3010.0.114.30
3210.0.114.31/3210.0.114.31 – 10.0.114.3110.0.114.31
3310.0.114.32/3210.0.114.32 – 10.0.114.3210.0.114.32
3410.0.114.33/3210.0.114.33 – 10.0.114.3310.0.114.33
3510.0.114.34/3210.0.114.34 – 10.0.114.3410.0.114.34
3610.0.114.35/3210.0.114.35 – 10.0.114.3510.0.114.35
3710.0.114.36/3210.0.114.36 – 10.0.114.3610.0.114.36
3810.0.114.37/3210.0.114.37 – 10.0.114.3710.0.114.37
3910.0.114.38/3210.0.114.38 – 10.0.114.3810.0.114.38
4010.0.114.39/3210.0.114.39 – 10.0.114.3910.0.114.39
4110.0.114.40/3210.0.114.40 – 10.0.114.4010.0.114.40
4210.0.114.41/3210.0.114.41 – 10.0.114.4110.0.114.41
4310.0.114.42/3210.0.114.42 – 10.0.114.4210.0.114.42
4410.0.114.43/3210.0.114.43 – 10.0.114.4310.0.114.43
4510.0.114.44/3210.0.114.44 – 10.0.114.4410.0.114.44
4610.0.114.45/3210.0.114.45 – 10.0.114.4510.0.114.45
4710.0.114.46/3210.0.114.46 – 10.0.114.4610.0.114.46
4810.0.114.47/3210.0.114.47 – 10.0.114.4710.0.114.47
4910.0.114.48/3210.0.114.48 – 10.0.114.4810.0.114.48
5010.0.114.49/3210.0.114.49 – 10.0.114.4910.0.114.49
5110.0.114.50/3210.0.114.50 – 10.0.114.5010.0.114.50
5210.0.114.51/3210.0.114.51 – 10.0.114.5110.0.114.51
5310.0.114.52/3210.0.114.52 – 10.0.114.5210.0.114.52
5410.0.114.53/3210.0.114.53 – 10.0.114.5310.0.114.53
5510.0.114.54/3210.0.114.54 – 10.0.114.5410.0.114.54
5610.0.114.55/3210.0.114.55 – 10.0.114.5510.0.114.55
5710.0.114.56/3210.0.114.56 – 10.0.114.5610.0.114.56
5810.0.114.57/3210.0.114.57 – 10.0.114.5710.0.114.57
5910.0.114.58/3210.0.114.58 – 10.0.114.5810.0.114.58
6010.0.114.59/3210.0.114.59 – 10.0.114.5910.0.114.59
6110.0.114.60/3210.0.114.60 – 10.0.114.6010.0.114.60
6210.0.114.61/3210.0.114.61 – 10.0.114.6110.0.114.61
6310.0.114.62/3210.0.114.62 – 10.0.114.6210.0.114.62
6410.0.114.63/3210.0.114.63 – 10.0.114.6310.0.114.63
6510.0.114.64/3210.0.114.64 – 10.0.114.6410.0.114.64
6610.0.114.65/3210.0.114.65 – 10.0.114.6510.0.114.65
6710.0.114.66/3210.0.114.66 – 10.0.114.6610.0.114.66
6810.0.114.67/3210.0.114.67 – 10.0.114.6710.0.114.67
6910.0.114.68/3210.0.114.68 – 10.0.114.6810.0.114.68
7010.0.114.69/3210.0.114.69 – 10.0.114.6910.0.114.69
7110.0.114.70/3210.0.114.70 – 10.0.114.7010.0.114.70
7210.0.114.71/3210.0.114.71 – 10.0.114.7110.0.114.71
7310.0.114.72/3210.0.114.72 – 10.0.114.7210.0.114.72
7410.0.114.73/3210.0.114.73 – 10.0.114.7310.0.114.73
7510.0.114.74/3210.0.114.74 – 10.0.114.7410.0.114.74
7610.0.114.75/3210.0.114.75 – 10.0.114.7510.0.114.75
7710.0.114.76/3210.0.114.76 – 10.0.114.7610.0.114.76
7810.0.114.77/3210.0.114.77 – 10.0.114.7710.0.114.77
7910.0.114.78/3210.0.114.78 – 10.0.114.7810.0.114.78
8010.0.114.79/3210.0.114.79 – 10.0.114.7910.0.114.79
8110.0.114.80/3210.0.114.80 – 10.0.114.8010.0.114.80
8210.0.114.81/3210.0.114.81 – 10.0.114.8110.0.114.81
8310.0.114.82/3210.0.114.82 – 10.0.114.8210.0.114.82
8410.0.114.83/3210.0.114.83 – 10.0.114.8310.0.114.83
8510.0.114.84/3210.0.114.84 – 10.0.114.8410.0.114.84
8610.0.114.85/3210.0.114.85 – 10.0.114.8510.0.114.85
8710.0.114.86/3210.0.114.86 – 10.0.114.8610.0.114.86
8810.0.114.87/3210.0.114.87 – 10.0.114.8710.0.114.87
8910.0.114.88/3210.0.114.88 – 10.0.114.8810.0.114.88
9010.0.114.89/3210.0.114.89 – 10.0.114.8910.0.114.89
9110.0.114.90/3210.0.114.90 – 10.0.114.9010.0.114.90
9210.0.114.91/3210.0.114.91 – 10.0.114.9110.0.114.91
9310.0.114.92/3210.0.114.92 – 10.0.114.9210.0.114.92
9410.0.114.93/3210.0.114.93 – 10.0.114.9310.0.114.93
9510.0.114.94/3210.0.114.94 – 10.0.114.9410.0.114.94
9610.0.114.95/3210.0.114.95 – 10.0.114.9510.0.114.95
9710.0.114.96/3210.0.114.96 – 10.0.114.9610.0.114.96
9810.0.114.97/3210.0.114.97 – 10.0.114.9710.0.114.97
9910.0.114.98/3210.0.114.98 – 10.0.114.9810.0.114.98
10010.0.114.99/3210.0.114.99 – 10.0.114.9910.0.114.99
10110.0.114.100/3210.0.114.100 – 10.0.114.10010.0.114.100
10210.0.114.101/3210.0.114.101 – 10.0.114.10110.0.114.101
10310.0.114.102/3210.0.114.102 – 10.0.114.10210.0.114.102
10410.0.114.103/3210.0.114.103 – 10.0.114.10310.0.114.103
10510.0.114.104/3210.0.114.104 – 10.0.114.10410.0.114.104
10610.0.114.105/3210.0.114.105 – 10.0.114.10510.0.114.105
10710.0.114.106/3210.0.114.106 – 10.0.114.10610.0.114.106
10810.0.114.107/3210.0.114.107 – 10.0.114.10710.0.114.107
10910.0.114.108/3210.0.114.108 – 10.0.114.10810.0.114.108
11010.0.114.109/3210.0.114.109 – 10.0.114.10910.0.114.109
11110.0.114.110/3210.0.114.110 – 10.0.114.11010.0.114.110
11210.0.114.111/3210.0.114.111 – 10.0.114.11110.0.114.111
11310.0.114.112/3210.0.114.112 – 10.0.114.11210.0.114.112
11410.0.114.113/3210.0.114.113 – 10.0.114.11310.0.114.113
11510.0.114.114/3210.0.114.114 – 10.0.114.11410.0.114.114
11610.0.114.115/3210.0.114.115 – 10.0.114.11510.0.114.115
11710.0.114.116/3210.0.114.116 – 10.0.114.11610.0.114.116
11810.0.114.117/3210.0.114.117 – 10.0.114.11710.0.114.117
11910.0.114.118/3210.0.114.118 – 10.0.114.11810.0.114.118
12010.0.114.119/3210.0.114.119 – 10.0.114.11910.0.114.119
12110.0.114.120/3210.0.114.120 – 10.0.114.12010.0.114.120
12210.0.114.121/3210.0.114.121 – 10.0.114.12110.0.114.121
12310.0.114.122/3210.0.114.122 – 10.0.114.12210.0.114.122
12410.0.114.123/3210.0.114.123 – 10.0.114.12310.0.114.123
12510.0.114.124/3210.0.114.124 – 10.0.114.12410.0.114.124
12610.0.114.125/3210.0.114.125 – 10.0.114.12510.0.114.125
12710.0.114.126/3210.0.114.126 – 10.0.114.12610.0.114.126
12810.0.114.127/3210.0.114.127 – 10.0.114.12710.0.114.127
12910.0.114.128/3210.0.114.128 – 10.0.114.12810.0.114.128
13010.0.114.129/3210.0.114.129 – 10.0.114.12910.0.114.129
13110.0.114.130/3210.0.114.130 – 10.0.114.13010.0.114.130
13210.0.114.131/3210.0.114.131 – 10.0.114.13110.0.114.131
13310.0.114.132/3210.0.114.132 – 10.0.114.13210.0.114.132
13410.0.114.133/3210.0.114.133 – 10.0.114.13310.0.114.133
13510.0.114.134/3210.0.114.134 – 10.0.114.13410.0.114.134
13610.0.114.135/3210.0.114.135 – 10.0.114.13510.0.114.135
13710.0.114.136/3210.0.114.136 – 10.0.114.13610.0.114.136
13810.0.114.137/3210.0.114.137 – 10.0.114.13710.0.114.137
13910.0.114.138/3210.0.114.138 – 10.0.114.13810.0.114.138
14010.0.114.139/3210.0.114.139 – 10.0.114.13910.0.114.139
14110.0.114.140/3210.0.114.140 – 10.0.114.14010.0.114.140
14210.0.114.141/3210.0.114.141 – 10.0.114.14110.0.114.141
14310.0.114.142/3210.0.114.142 – 10.0.114.14210.0.114.142
14410.0.114.143/3210.0.114.143 – 10.0.114.14310.0.114.143
14510.0.114.144/3210.0.114.144 – 10.0.114.14410.0.114.144
14610.0.114.145/3210.0.114.145 – 10.0.114.14510.0.114.145
14710.0.114.146/3210.0.114.146 – 10.0.114.14610.0.114.146
14810.0.114.147/3210.0.114.147 – 10.0.114.14710.0.114.147
14910.0.114.148/3210.0.114.148 – 10.0.114.14810.0.114.148
15010.0.114.149/3210.0.114.149 – 10.0.114.14910.0.114.149
15110.0.114.150/3210.0.114.150 – 10.0.114.15010.0.114.150
15210.0.114.151/3210.0.114.151 – 10.0.114.15110.0.114.151
15310.0.114.152/3210.0.114.152 – 10.0.114.15210.0.114.152
15410.0.114.153/3210.0.114.153 – 10.0.114.15310.0.114.153
15510.0.114.154/3210.0.114.154 – 10.0.114.15410.0.114.154
15610.0.114.155/3210.0.114.155 – 10.0.114.15510.0.114.155
15710.0.114.156/3210.0.114.156 – 10.0.114.15610.0.114.156
15810.0.114.157/3210.0.114.157 – 10.0.114.15710.0.114.157
15910.0.114.158/3210.0.114.158 – 10.0.114.15810.0.114.158
16010.0.114.159/3210.0.114.159 – 10.0.114.15910.0.114.159
16110.0.114.160/3210.0.114.160 – 10.0.114.16010.0.114.160
16210.0.114.161/3210.0.114.161 – 10.0.114.16110.0.114.161
16310.0.114.162/3210.0.114.162 – 10.0.114.16210.0.114.162
16410.0.114.163/3210.0.114.163 – 10.0.114.16310.0.114.163
16510.0.114.164/3210.0.114.164 – 10.0.114.16410.0.114.164
16610.0.114.165/3210.0.114.165 – 10.0.114.16510.0.114.165
16710.0.114.166/3210.0.114.166 – 10.0.114.16610.0.114.166
16810.0.114.167/3210.0.114.167 – 10.0.114.16710.0.114.167
16910.0.114.168/3210.0.114.168 – 10.0.114.16810.0.114.168
17010.0.114.169/3210.0.114.169 – 10.0.114.16910.0.114.169
17110.0.114.170/3210.0.114.170 – 10.0.114.17010.0.114.170
17210.0.114.171/3210.0.114.171 – 10.0.114.17110.0.114.171
17310.0.114.172/3210.0.114.172 – 10.0.114.17210.0.114.172
17410.0.114.173/3210.0.114.173 – 10.0.114.17310.0.114.173
17510.0.114.174/3210.0.114.174 – 10.0.114.17410.0.114.174
17610.0.114.175/3210.0.114.175 – 10.0.114.17510.0.114.175
17710.0.114.176/3210.0.114.176 – 10.0.114.17610.0.114.176
17810.0.114.177/3210.0.114.177 – 10.0.114.17710.0.114.177
17910.0.114.178/3210.0.114.178 – 10.0.114.17810.0.114.178
18010.0.114.179/3210.0.114.179 – 10.0.114.17910.0.114.179
18110.0.114.180/3210.0.114.180 – 10.0.114.18010.0.114.180
18210.0.114.181/3210.0.114.181 – 10.0.114.18110.0.114.181
18310.0.114.182/3210.0.114.182 – 10.0.114.18210.0.114.182
18410.0.114.183/3210.0.114.183 – 10.0.114.18310.0.114.183
18510.0.114.184/3210.0.114.184 – 10.0.114.18410.0.114.184
18610.0.114.185/3210.0.114.185 – 10.0.114.18510.0.114.185
18710.0.114.186/3210.0.114.186 – 10.0.114.18610.0.114.186
18810.0.114.187/3210.0.114.187 – 10.0.114.18710.0.114.187
18910.0.114.188/3210.0.114.188 – 10.0.114.18810.0.114.188
19010.0.114.189/3210.0.114.189 – 10.0.114.18910.0.114.189
19110.0.114.190/3210.0.114.190 – 10.0.114.19010.0.114.190
19210.0.114.191/3210.0.114.191 – 10.0.114.19110.0.114.191
19310.0.114.192/3210.0.114.192 – 10.0.114.19210.0.114.192
19410.0.114.193/3210.0.114.193 – 10.0.114.19310.0.114.193
19510.0.114.194/3210.0.114.194 – 10.0.114.19410.0.114.194
19610.0.114.195/3210.0.114.195 – 10.0.114.19510.0.114.195
19710.0.114.196/3210.0.114.196 – 10.0.114.19610.0.114.196
19810.0.114.197/3210.0.114.197 – 10.0.114.19710.0.114.197
19910.0.114.198/3210.0.114.198 – 10.0.114.19810.0.114.198
20010.0.114.199/3210.0.114.199 – 10.0.114.19910.0.114.199
20110.0.114.200/3210.0.114.200 – 10.0.114.20010.0.114.200
20210.0.114.201/3210.0.114.201 – 10.0.114.20110.0.114.201
20310.0.114.202/3210.0.114.202 – 10.0.114.20210.0.114.202
20410.0.114.203/3210.0.114.203 – 10.0.114.20310.0.114.203
20510.0.114.204/3210.0.114.204 – 10.0.114.20410.0.114.204
20610.0.114.205/3210.0.114.205 – 10.0.114.20510.0.114.205
20710.0.114.206/3210.0.114.206 – 10.0.114.20610.0.114.206
20810.0.114.207/3210.0.114.207 – 10.0.114.20710.0.114.207
20910.0.114.208/3210.0.114.208 – 10.0.114.20810.0.114.208
21010.0.114.209/3210.0.114.209 – 10.0.114.20910.0.114.209
21110.0.114.210/3210.0.114.210 – 10.0.114.21010.0.114.210
21210.0.114.211/3210.0.114.211 – 10.0.114.21110.0.114.211
21310.0.114.212/3210.0.114.212 – 10.0.114.21210.0.114.212
21410.0.114.213/3210.0.114.213 – 10.0.114.21310.0.114.213
21510.0.114.214/3210.0.114.214 – 10.0.114.21410.0.114.214
21610.0.114.215/3210.0.114.215 – 10.0.114.21510.0.114.215
21710.0.114.216/3210.0.114.216 – 10.0.114.21610.0.114.216
21810.0.114.217/3210.0.114.217 – 10.0.114.21710.0.114.217
21910.0.114.218/3210.0.114.218 – 10.0.114.21810.0.114.218
22010.0.114.219/3210.0.114.219 – 10.0.114.21910.0.114.219
22110.0.114.220/3210.0.114.220 – 10.0.114.22010.0.114.220
22210.0.114.221/3210.0.114.221 – 10.0.114.22110.0.114.221
22310.0.114.222/3210.0.114.222 – 10.0.114.22210.0.114.222
22410.0.114.223/3210.0.114.223 – 10.0.114.22310.0.114.223
22510.0.114.224/3210.0.114.224 – 10.0.114.22410.0.114.224
22610.0.114.225/3210.0.114.225 – 10.0.114.22510.0.114.225
22710.0.114.226/3210.0.114.226 – 10.0.114.22610.0.114.226
22810.0.114.227/3210.0.114.227 – 10.0.114.22710.0.114.227
22910.0.114.228/3210.0.114.228 – 10.0.114.22810.0.114.228
23010.0.114.229/3210.0.114.229 – 10.0.114.22910.0.114.229
23110.0.114.230/3210.0.114.230 – 10.0.114.23010.0.114.230
23210.0.114.231/3210.0.114.231 – 10.0.114.23110.0.114.231
23310.0.114.232/3210.0.114.232 – 10.0.114.23210.0.114.232
23410.0.114.233/3210.0.114.233 – 10.0.114.23310.0.114.233
23510.0.114.234/3210.0.114.234 – 10.0.114.23410.0.114.234
23610.0.114.235/3210.0.114.235 – 10.0.114.23510.0.114.235
23710.0.114.236/3210.0.114.236 – 10.0.114.23610.0.114.236
23810.0.114.237/3210.0.114.237 – 10.0.114.23710.0.114.237
23910.0.114.238/3210.0.114.238 – 10.0.114.23810.0.114.238
24010.0.114.239/3210.0.114.239 – 10.0.114.23910.0.114.239
24110.0.114.240/3210.0.114.240 – 10.0.114.24010.0.114.240
24210.0.114.241/3210.0.114.241 – 10.0.114.24110.0.114.241
24310.0.114.242/3210.0.114.242 – 10.0.114.24210.0.114.242
24410.0.114.243/3210.0.114.243 – 10.0.114.24310.0.114.243
24510.0.114.244/3210.0.114.244 – 10.0.114.24410.0.114.244
24610.0.114.245/3210.0.114.245 – 10.0.114.24510.0.114.245
24710.0.114.246/3210.0.114.246 – 10.0.114.24610.0.114.246
24810.0.114.247/3210.0.114.247 – 10.0.114.24710.0.114.247
24910.0.114.248/3210.0.114.248 – 10.0.114.24810.0.114.248
25010.0.114.249/3210.0.114.249 – 10.0.114.24910.0.114.249
25110.0.114.250/3210.0.114.250 – 10.0.114.25010.0.114.250
25210.0.114.251/3210.0.114.251 – 10.0.114.25110.0.114.251
25310.0.114.252/3210.0.114.252 – 10.0.114.25210.0.114.252
25410.0.114.253/3210.0.114.253 – 10.0.114.25310.0.114.253
25510.0.114.254/3210.0.114.254 – 10.0.114.25410.0.114.254
25610.0.114.255/3210.0.114.255 – 10.0.114.25510.0.114.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 split →
02 / faq

About this calculator.

How do I use this subnet calculator?

▼

Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.

Why are usable hosts always 2 fewer?

▼

The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.

Can I use it from a terminal?

▼

Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.

Learn how to work it out →